require 'socket'

class SSLSocketTest < Picotest::Test
  def test_ssl_context_constants
    # Check if SSLContext constants are defined
    assert_equal(0, SSLContext::VERIFY_NONE)
    assert_equal(1, SSLContext::VERIFY_PEER)
  end

  def test_ssl_context_methods_exist
    # Check if SSLContext methods exist
    methods = SSLContext.instance_methods
    assert_true(methods.include?(:ca_file=))
    assert_true(methods.include?(:verify_mode=))
    assert_true(methods.include?(:verify_mode))
  end

  def test_ssl_socket_methods_exist
    # Ruby-defined methods should be visible
    methods = SSLSocket.instance_methods
    assert_true(methods.include?(:hostname=))
    assert_true(methods.include?(:connect))
    assert_true(methods.include?(:write))
    assert_true(methods.include?(:read))
    assert_true(methods.include?(:close))
    assert_true(methods.include?(:closed?))
    assert_true(methods.include?(:remote_host))
    assert_true(methods.include?(:remote_port))
    assert_true(methods.include?(:connected?))
  end

  def test_ssl_socket_inherits_from_basic_socket
    # SSLSocket should inherit from BasicSocket
    assert_true(SSLSocket.ancestors.include?(BasicSocket))
  end

  def test_ssl_socket_io_compatible_methods_exist
    # IO-compatible methods from BasicSocket should be available
    methods = SSLSocket.instance_methods
    assert_true(methods.include?(:puts))
    assert_true(methods.include?(:gets))
    assert_true(methods.include?(:print))
    assert_true(methods.include?(:send))
    assert_true(methods.include?(:recv))
  end

  # Note: The following tests require external network connectivity and HTTPS server
  # They are commented out because:
  # 1. They depend on external services (e.g., https://example.com)
  # 2. SSL/TLS handshake requires proper certificates and network access
  # 3. Integration tests with SSLSocket require mbedtls library to be built
  #    which is not available in the current test environment
  # Uncomment when running in an environment with:
  # - Network access to HTTPS servers
  # - mbedtls library properly built and linked
  # - SSL/TLS certificate validation configured

  # def test_ssl_socket_connect_and_close
  #   tcp_socket = TCPSocket.new('example.com', 443)
  #   ctx = SSLContext.new
  #   ctx.verify_mode = SSLContext::VERIFY_NONE
  #   ssl_socket = SSLSocket.new(tcp_socket, ctx)
  #   ssl_socket.hostname = 'example.com'
  #   ssl_socket.connect
  #   assert_false(ssl_socket.closed?)
  #   assert_equal('example.com', ssl_socket.remote_host)
  #   assert_equal(443, ssl_socket.remote_port)
  #   ssl_socket.close
  #   assert_true(ssl_socket.closed?)
  # end

  # def test_ssl_socket_write_and_read
  #   tcp_socket = TCPSocket.new('example.com', 443)
  #   ctx = SSLContext.new
  #   ctx.verify_mode = SSLContext::VERIFY_NONE
  #   ssl_socket = SSLSocket.new(tcp_socket, ctx)
  #   ssl_socket.hostname = 'example.com'
  #   ssl_socket.connect
  #
  #   # Send HTTPS request
  #   request = "GET / HTTP/1.1\r\nHost: example.com\r\nConnection: close\r\n\r\n"
  #   bytes_sent = ssl_socket.write(request)
  #   assert_true(bytes_sent > 0)
  #
  #   # Read response
  #   response = ssl_socket.read(100)
  #   assert_true(response.length > 0)
  #   assert_true(response.include?('HTTP'))
  #
  #   ssl_socket.close
  # end

  # def test_ssl_socket_open
  #   tcp_socket = TCPSocket.open('example.com', 443)
  #   ctx = SSLContext.new
  #   ctx.verify_mode = SSLContext::VERIFY_NONE
  #   ssl_socket = SSLSocket.open(tcp_socket, ctx)
  #   assert_false(ssl_socket.closed?)
  #   ssl_socket.close
  # end

  # def test_ssl_socket_connected
  #   tcp_socket = TCPSocket.new('example.com', 443)
  #   ctx = SSLContext.new
  #   ctx.verify_mode = SSLContext::VERIFY_NONE
  #   ssl_socket = SSLSocket.new(tcp_socket, ctx)
  #   ssl_socket.hostname = 'example.com'
  #   ssl_socket.connect
  #   assert_true(ssl_socket.connected?)
  #   ssl_socket.close
  #   assert_false(ssl_socket.connected?)
  # end

  # def test_ssl_socket_io_compatible_methods
  #   tcp_socket = TCPSocket.new('example.com', 443)
  #   ctx = SSLContext.new
  #   ctx.verify_mode = SSLContext::VERIFY_NONE
  #   ssl_socket = SSLSocket.new(tcp_socket, ctx)
  #   ssl_socket.hostname = 'example.com'
  #   ssl_socket.connect
  #
  #   # Test puts
  #   ssl_socket.puts("GET / HTTP/1.1")
  #   ssl_socket.puts("Host: example.com")
  #   ssl_socket.puts("Connection: close")
  #   ssl_socket.puts("")
  #
  #   # Test gets
  #   line = ssl_socket.gets
  #   assert_true(line.include?('HTTP'))
  #
  #   ssl_socket.close
  # end
end
